ARB RD177 Air Locker Differential with Pneumatic Locking System

The ARB RD177 Air Locker Differential delivers 100% traction on demand without compromising highway driving performance. This advanced locking differential features ARB's improved two-piece design, forged gears for exceptional strength, and is backed by an industry-leading five-year warranty.

How It Works:

The Air Locker employs a pneumatically operated locking mechanism activated by a 12-volt ARB air compressor. At the flip of a switch from the driver's seat, the system engages to prevent the differential gears from rotating independently. This locks both axle shafts directly to the ring gear, ensuring both wheels receive equal power and maximum traction. When unlocked, the unit functions as a conventional open differential for normal on-road driving.

Key Features:

• Two-piece construction with forged gears for superior durability
• Pneumatic activation system for instant engagement and disengagement
• Maintains full highway driving performance when unlocked
• Requires 12-volt ARB air compressor for operation (sold separately)
• Five-year manufacturer warranty
• Allows slower, more controlled off-road driving to minimize vehicle damage and environmental impact

Perfect for serious off-road enthusiasts who need maximum traction in challenging terrain while retaining excellent on-road manners. The Air Locker gives you the ability to switch between open differential comfort and locked differential capability instantly.